gilbert



(No Model.) 3 Sheets-Sheet 1. A. L. GILBERT.

PILE' DRIVER.

No. 254,955. Patented Mar. 14,1882;

ATTORNEYS.

N. PEI'ERS, Phoin-Lilhogmphzn Washington n.c.

('No Model.) S 3 Sheets-Sheet 2.

- A. L. GILBERT.

' PILB DRIVER. T No. 254,955. 5. PatentedMaJr. 14,1882.

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WITNESSES INVENTOR Jmg- ATTORNEYS, V

N. PETERS PlmlwLilhogmpher. Washington. D,C.

no Model.) 7 3 SheetsSheet s.

A. L. GILBERT.

PILE DRIVER. No 254,955. Patented Mar. 14,1882. V

WITNES s 5700M BYO$ .1 X4

ATTORNEY N. PETERS. Fiuow-Likhngnpher. Washington, D c.

UNITED STATES PATENT OFFICE.

ANDRUS L. GILBERT, OF ALBANY, NEW YORK.

FILE-DRIVER.

SPECIFICATION forming part of Letters Patent No. 254,955, dated March14, 1882.

Application filed December 29, 1881.

To all whom it may concern:

Be it known that I, ANDRUS L. GILBERT, of Albany, in the county ofAlbanyand State of New York, have invented a new and useful Improvement inPile-Drivers, of which the following is a full, clear, and exactdescription.

My improvement relates to pile-drivers used in the construction ofrailroads; and the inventionconsists in the construction and arrangementof parts, having the object to facilitate continuous work and thedriving of inclined piles, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of my improved piledriver. Fig. 2 is afront elevation. is a plan view. Fig. 4 is a detail section at the pivotof the turning platform, and Fig. 5 is a horizontal section on line w orof Fig. 2.

A is a truck or platform car, on which is a platform, B, supported byrollers a, so that it may be moved transversely of the car. On platformB is the turn-table 0, supported by rollers 11 on the circular track 0,and supported at its center by a box, d, and pivot-tube c, on

' which the table turns.

D D are the guide-leaders of the pile-driver proper, hung by sidepivots, ff, near their lower ends to the forward edge of table 0, andbraced at the rear by an A-frame, E, which extends from the top of theleaders to the turntable. The upper ends of frameE are pivoted to theleaders, and the lower ends are pivoted to slide-blocks g 9!, that areupon flanged slideways h h on table 0, so that the blocks y can be movedto set the leaders D at the inclination required. The slideways h areset inclined, so that a greater inclination of the leaders is obtainedby a shorter movement of the blocks. The ways it are provided with rackst i, which are engaged by pinions k on a cross-shaft, Z, carried byblocks 9. The shaft also carries a larger gear-wheel, m, which is fittedfor being revolved by a crank and gear, so as to efi ect the movement ofblocks 9 in either direction, as desired.

It will be seen that the leaders, braces, and other parts described areall carried by the turn-table O, and the table being turned to Fig.

(No model.)

either side, the leaders are brought into position for drivingbattering-piles at the inclination required, and the rows of piling canbe completed at once. The hoisting-rope n of the hammer leads from thewinding-drum F, along beneath platform B, to afriction-pulley, 0, andthence upward through the hollow pivot of the table. This permits thetable to be turned to either side and the inclined leaders thus broughtsidewise to the direction of the roadway, so that the hammer shall besupported by both leaders.

To turn the table (3, I provide on platform B rack-segments p, and thetable is fitted with a vertical shaft, q, carrying a pinion engaging therack. A hand-wheel is fitted on shaft .q, for its convenient operation.

The platform B is provided at one side with a shaft, 1', at the ends ofwhich are bevel-gears r, engaging similar gears on short vertical shaftss,th at carry pinions s ,meshin gin to racks t, fixed on thecross-timbers of car A. A crank and wheel at a on platform B areprovided for revolving shaft r, and thus moving the platform sidewisewith its imposed parts.

The construction of the leaders D is shown most clearly in Fig. 5. Inorder to reduce weight they are constructed of T angle-irons a, to whichare riveted channel-bars b, that form the guides for the hammer G. Thisconstruction is substantial and much lighter than the cumbersome woodenleaders generally employed.

The car will carry an engine for driving the winding-drum, and inoperation the car is moved forward to project the platform B in front,and then by transverse adjustment of the platform the leaders arebrought to place to drive the straight piles in succession. The leadersare then set at the requiredinclination and the table turned first toone side and then 1. In a pile'driver, the combination, with theturn-table O, the leaders I), and the'braceframeE, provided with thepivoted slide-blocks g, of the inclined ways It, substantially as shownand described, whereby a greater inclination of the leaders is obtainedby a shorter movement of the blocks, as set forth.

2. In a pile-driver, the combination, with the turn-table O, the leadersD, and the braceframe E, and the pivoted blocks g, of the inclined waysh, provided with racks i, the shaft l, the pinions Ir, and means foroperating said shaft, substantially as and for the purpose set forth.

3. In a pile-driver, the turn-table G, carryin g adjustable pivotedleaders, and sustained on a hollow pivot through which the hammerropepasses, substantially as shown and described.

4. In a pile-driver, the combination of shaft 20 r, bevel-gears r,shafts s, pinious s, and racks t with the platform B and car A,substantially as shown and described.

5. In a pile-driver, the leaders formed of T- plates a and angle-platesb, substantially as 25 shown and described.

ANDRUS LEWELLING GILBERT.

. Witnesses:

CHAS. HILTON, H. J. RICHARDS.

